Phytopathogenic oomycetes, such as Phytophthora infestans, secrete an arsenal of effector proteins that modulate plant innate immunity to enable infection. We describe CRN8, a host-translocated effector of P. infestans that has kinase activity in planta. CRN8 is a modular protein of the CRN effector family. The C-terminus of CRN8 localizes to the host nucleus and triggers cell death when the pr...

Late blight, a disease caused by oomycota, Phytophthora infestans, is greater threat to the potato crop than any other in Mauritius. This remains most challenging manage once symptoms have appeared, thus requiring rapid detection for effective management. The aim of this study was compare different methods early causal agent late blight. Conventional culture-based involved direct isolation P. i...

Whole and partial genome sequences are becoming available at an ever-increasing pace. For many plant pathogen systems, we are moving into the era of genome resequencing. The first Phytophthora genomes, P. ramorum and P. sojae, became available in 2004, followed shortly by P. infestans in 2006. Availability of whole genome sequences has provided rapid and immediate advances in several areas also...

In plants, an active defense against biotrophic pathogens is dependent on a functional continuum between the cell wall (CW) and the plasma membrane (PM). It is thus anticipated that proteins maintaining this continuum also function in defense. The legume-like lectin receptor kinase LecRK-I.9 is a putative mediator of CW-PM adhesions in Arabidopsis and is known to bind in vitro to the Phytophtho...

Phytophthora infestans (Mont.) de Bary, the causal agent of potato late blight, was responsible for the Irish potato famine of the 1840s. Initial disease outbreaks occurred in the US in 1843, two years prior to European outbreaks. We examined the evolutionary relationships and source of the 19th-century outbreaks using herbarium specimens of P. infestans from historic (1846-1970) and more recen...

Potato late blight is one the most important crop diseases worldwide. Even though potato has been studied for many years, the potato disease late blight still has a vast negative effect on the potato production [1], [2], [3]. Late blight is caused by the pathogen Phytophthora infestans (P. infestans), which initiates infection through leaves. However, the biological activities during different ...

Small RNAs (sRNAs) are small non-coding RNAs usually ranging in size 20-30 nt. They are playing important roles in plant-pathogen interactions. This thesis aimed at studying the sRNA populations in potato and Phytophthora infestans and their role in the potato-P. infestans interaction. An attempt was also made to implement such knowledge to improve resistance in potato against P. infestans. P. ...

Effectiveness of Awar-Awar (Ficus septica Burm F) Leaf Extract to Inhibit the Growth Fungus Phytophthora infestans that Causes Tomato Late Blight. late blight caused by fungus is one main diseases affecting tomato production in world. Therefore, it needs be controlled an environmentally friendly way, which using vegetable pesticides. Awar-awar leaves are plants whose extracts can used as fungic...

Potato (Solanum tuberosum) is a valuable staple crop that provides nutrition for large part of the human population around world. However, domestication process reduced its resistance to pests and pathogens. Phytophthora infestans, causal agent late blight disease, most destructive pathogen potato plants. Considerable efforts have been made develop blight-resistant cultivars, but success has li...

The Phytophthora Genome Initiative (PGI) is a distributed collaboration to study the genome and evolution of a particularly destructive group of plant pathogenic oomycete, with the goal of understanding the mechanisms of infection and resistance. NCGR provides informatics support for the collaboration as well as a centralized data repository. In the pilot phase of the project, several investiga...